Nucleic Acids Research, Vol 24, Issue 11 2017-2021, Copyright © 1996 by Oxford University Press
F Del Gatto, MC Gesnel and R Breathnach
The fibroblast growth factor receptor-2 gene contains a pair of alternative
exons, K-SAM and BEK, which are spliced in a cell type specific manner. We
have shown previously that a 10 nucleotide sequence within the K-SAM exon
exerts a negative effect on K-SAM exon splicing independent of cell type.
We demonstrate here that this sequence works autonomously, as it can
repress splicing of a heterologous exon, the EIIIb alternative exon of the
rat fibronectin gene. By introducing point mutations into the 10 nucleotide
sequence, we have shown that the functional portion is limited to 4
nucleotides, TAGG, the dinucleotide AG of which is particularly important.
This short sequence may participate in the control of splicing of exons
carrying it, provided that they carry weak splice sites.
ARTICLES
The exon sequence TAGG can inhibit splicing
INSERM U211, Institut de Biologie, Nantes, France.
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